supplementary materials

Dichlorido{N'-[phenyl(pyridin-2-yl-
N)methylidene]isonicotinohydrazide-
2N',O}zinc
The title compound, [ZnCl2(C18H14N4O)], crystallizes with two molecules in the asymmetric unit, which differ in the tautomeric (neutral and zwitterionic) forms of the coordinating organic ligand. In both molecules, the ZnII atom adopts a distorted square-pyramidal geometry by two N and one O atoms of the Schiff base ligand and two Cl atoms acting as monodentate chloride anions. The crystal packing is stabilized by N-H
N and N-H
Cl hydrogen bonds, forming a two-dimensional network parallel to the ac plane.
In a 50 ml round bottom flask introduce isonicotinic hydrazide (1 g, 0.0073 mol)
dissolved in methanol (10 ml). Benzoylpyridine (1.35 g, 0.0073 mol) in
methanol (10 ml) and two drops of galcial acetic acid, were added. The mixture
was refluxed for six hours to yield a quantitative precipitate. The white
precipitate formed, was separated by filtration, washed with ether and dried
under vacuum (yield: 75.2%); m.p.=206 °C. 1H NMR in C2D6SO, δ
(p.p.m.): 7.44–7.87 (m, 13H, HAr),, 8.82 (s, 1H, –NH). 13C NMR in
C2D6SO, δ (p.p.m.): 121–149 (CAr), 152 (C=N), 162 (C=O). IR (cm-1)
3342, 3279, 3161, 1726, 1698, 1515, 1398, 1359, 1169, 787. Anal. Calc. for
C18H14N4O (%): C, 71.51; H, 4.67; N, 18.53. Found: C, 71.53; H, 4.68; N,
18.57. Into an ethanolic solution (10 ml) of zinc chloride (0.067 g, 0.005 mmol) was added an ethanolic solution (10 ml) of the ligand prepared above
(0.15 g, 0.005 mmol). The resulting yellow mixture is heated at 60°C for two
hours. The yellow precipitate was discarded and the resulting filtrate was
then allowed to evaporate slowly in an open atmosphere. After two days, yellow
crystals suitable for X-ray analysis were obtained. The crystals were
separated and dried (yield: 73%); Anal. Calc. for C18H14ZnCl2N4O (%):
C, 49.29; H, 3.22; N, 12.77. Found: C, 49.32; H, 3.20; N, 12.75. Selected IR
data (cm-1, KBr pellet): 3445, 3053, 1650, 1511, 1352, 1141, 700.
Six low-resolution reflections affected by the beamstop were omitted from the
refinement using the OMIT instruction in SHELXL97 (Sheldrick,
2008). All H atoms were initially located in difference Fourier maps,
but for
the final refinements, all benzene-bound H atoms were positioned with
idealized geometry and included in the calculations as riding on their parent
atoms, with C—H = 0.97 Å and Uiso(H) = 1.2Ueq(C). The
positions of the H atoms borne by nitrogen atoms were refined freely, giving
restraints on N—H distances in the range 0.87 (2) Å with Uiso(H)
= 1.2Ueq(N).
Data collection: CrystalClear-SM Expert (Rigaku, 2009); cell refinement: CrystalClear-SM Expert (Rigaku, 2009); data reduction: CrystalClear-SM Expert (Rigaku, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) and CRYSTALBUILDER (Welter, 2006); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).
Dichlorido{
N'-[phenyl(pyridin-2-yl-
κN)methylidene]isonicotinohydrazide-
κ2N',
O}zinc
top
Crystal data top
| [ZnCl2(C18H14N4O)] | Z = 4 |
| Mr = 438.6 | F(000) = 888 |
| Triclinic, P1 | Dx = 1.569 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71070 Å |
| a = 11.517 (3) Å | Cell parameters from 5145 reflections |
| b = 13.248 (2) Å | θ = 0.4–24.7° |
| c = 13.459 (1) Å | µ = 1.63 mm−1 |
| α = 91.130 (5)° | T = 293 K |
| β = 104.708 (4)° | Prism, yellow |
| γ = 109.798 (4)° | 0.45 × 0.22 × 0.18 mm |
| V = 1856.2 (6) Å3 | |
Data collection top
Nonius KappaCCD diffractometer | 6674 independent reflections |
| Radiation source: fine-focus sealed tube, Nonius KappaCCD | 4122 reflections with I > 2σ(I) |
| Graphite monochromator | Rint = 0.040 |
| Detector resolution: 9 pixels mm-1 | θmax = 25.3°, θmin = 1.6° |
| phi and ω scans | h = −13→13 |
Absorption correction: multi-scan (ABSCOR; Rigaku, 2009) | k = −15→15 |
| Tmin = 0.379, Tmax = 0.745 | l = −16→16 |
| 15524 measured reflections | |
Refinement top
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: difference Fourier map |
| R[F2 > 2σ(F2)] = 0.042 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.102 | w = 1/[σ2(Fo2) + (0.0372P)2] where P = (Fo2 + 2Fc2)/3 |
| S = 0.97 | (Δ/σ)max = 0.001 |
| 6668 reflections | Δρmax = 0.32 e Å−3 |
| 476 parameters | Δρmin = −0.42 e Å−3 |
| 1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0013 (3) |
Crystal data top
| [ZnCl2(C18H14N4O)] | γ = 109.798 (4)° |
| Mr = 438.6 | V = 1856.2 (6) Å3 |
| Triclinic, P1 | Z = 4 |
| a = 11.517 (3) Å | Mo Kα radiation |
| b = 13.248 (2) Å | µ = 1.63 mm−1 |
| c = 13.459 (1) Å | T = 293 K |
| α = 91.130 (5)° | 0.45 × 0.22 × 0.18 mm |
| β = 104.708 (4)° | |
Data collection top
Nonius KappaCCD diffractometer | 6674 independent reflections |
Absorption correction: multi-scan (ABSCOR; Rigaku, 2009) | 4122 reflections with I > 2σ(I) |
| Tmin = 0.379, Tmax = 0.745 | Rint = 0.040 |
| 15524 measured reflections | θmax = 25.3° |
Refinement top
| R[F2 > 2σ(F2)] = 0.042 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.102 | Δρmax = 0.32 e Å−3 |
| S = 0.97 | Δρmin = −0.42 e Å−3 |
| 6668 reflections | Absolute structure: ? |
| 476 parameters | Flack parameter: ? |
| 1 restraint | Rogers parameter: ? |
Special details top
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F2, conventional
R-factors R are based on F, with F set to zero for
negative F2. The threshold expression of F2 >
σ(F2) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F2 are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger. Six low-resolution reflections were rejected due to beamstop
shading using the OMIT instruction from SHELX97-L. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top| | x | y | z | Uiso*/Ueq | |
| Zn1 | 0.17339 (4) | 0.03172 (4) | 0.30977 (3) | 0.04231 (15) | |
| Cl1 | 0.13436 (11) | −0.14621 (9) | 0.29370 (9) | 0.0661 (3) | |
| Cl2 | 0.00008 (9) | 0.07571 (9) | 0.31555 (8) | 0.0552 (3) | |
| O1 | 0.1627 (3) | 0.0699 (3) | 0.15571 (19) | 0.0685 (10) | |
| N1 | 0.3803 (3) | 0.1689 (3) | 0.2234 (2) | 0.0429 (8) | |
| N2 | 0.3573 (3) | 0.1346 (2) | 0.3148 (2) | 0.0404 (8) | |
| N3 | 0.2819 (3) | 0.0655 (2) | 0.4742 (2) | 0.0393 (8) | |
| N4 | 0.2859 (3) | 0.2290 (3) | −0.1453 (2) | 0.0488 (9) | |
| H4N | 0.288 (3) | 0.247 (3) | −0.215 (3) | 0.059* | |
| C1 | 0.2704 (4) | 0.1297 (3) | 0.1489 (3) | 0.0416 (10) | |
| C2 | 0.4498 (3) | 0.1642 (3) | 0.4008 (3) | 0.0369 (9) | |
| C3 | 0.4088 (3) | 0.1201 (3) | 0.4924 (2) | 0.0356 (9) | |
| C4 | 0.4913 (4) | 0.1357 (3) | 0.5905 (3) | 0.0479 (11) | |
| H4 | 0.5785 | 0.1750 | 0.6026 | 0.058* | |
| C5 | 0.4432 (4) | 0.0924 (3) | 0.6705 (3) | 0.0540 (12) | |
| H5 | 0.4982 | 0.1001 | 0.7364 | 0.065* | |
| C6 | 0.3148 (4) | 0.0384 (3) | 0.6523 (3) | 0.0548 (12) | |
| H6 | 0.2805 | 0.0101 | 0.7056 | 0.066* | |
| C7 | 0.2368 (4) | 0.0265 (3) | 0.5531 (3) | 0.0482 (11) | |
| H7 | 0.1490 | −0.0103 | 0.5406 | 0.058* | |
| C8 | 0.2787 (3) | 0.1648 (3) | 0.0446 (2) | 0.0378 (9) | |
| C9 | 0.1685 (4) | 0.1343 (3) | −0.0369 (3) | 0.0510 (11) | |
| H9 | 0.0903 | 0.0911 | −0.0278 | 0.061* | |
| C10 | 0.1756 (4) | 0.1681 (3) | −0.1311 (3) | 0.0529 (12) | |
| H10 | 0.1014 | 0.1479 | −0.1861 | 0.064* | |
| C11 | 0.3953 (4) | 0.2585 (3) | −0.0685 (3) | 0.0514 (11) | |
| H11 | 0.4725 | 0.3001 | −0.0805 | 0.062* | |
| C12 | 0.3932 (4) | 0.2275 (3) | 0.0277 (3) | 0.0437 (10) | |
| H12 | 0.4688 | 0.2485 | 0.0814 | 0.052* | |
| C13 | 0.5813 (3) | 0.2388 (3) | 0.4099 (2) | 0.0361 (9) | |
| C14 | 0.6004 (4) | 0.3387 (3) | 0.3735 (3) | 0.0447 (10) | |
| H14 | 0.5298 | 0.3568 | 0.3408 | 0.054* | |
| C15 | 0.7222 (4) | 0.4112 (4) | 0.3850 (3) | 0.0566 (12) | |
| H15 | 0.7344 | 0.4785 | 0.3614 | 0.068* | |
| C16 | 0.8262 (4) | 0.3831 (5) | 0.4321 (3) | 0.0732 (16) | |
| H16 | 0.9090 | 0.4312 | 0.4392 | 0.088* | |
| C17 | 0.8084 (4) | 0.2860 (5) | 0.4682 (4) | 0.0765 (16) | |
| H17 | 0.8793 | 0.2681 | 0.5003 | 0.092* | |
| C18 | 0.6868 (4) | 0.2134 (4) | 0.4579 (3) | 0.0539 (11) | |
| H18 | 0.6759 | 0.1471 | 0.4834 | 0.065* | |
| Zn2 | 0.31778 (4) | 0.47927 (4) | 0.17144 (3) | 0.04310 (16) | |
| Cl3 | 0.50465 (9) | 0.47545 (9) | 0.15904 (7) | 0.0536 (3) | |
| Cl4 | 0.32363 (11) | 0.64860 (9) | 0.19446 (9) | 0.0688 (4) | |
| O2 | 0.3419 (2) | 0.4448 (2) | 0.33683 (18) | 0.0530 (8) | |
| N5 | 0.1412 (3) | 0.3230 (3) | 0.2757 (2) | 0.0439 (8) | |
| H5N | 0.085 (3) | 0.265 (2) | 0.283 (3) | 0.053* | |
| N6 | 0.1446 (3) | 0.3573 (2) | 0.1811 (2) | 0.0414 (8) | |
| N7 | 0.1966 (3) | 0.4295 (3) | 0.0172 (2) | 0.0460 (9) | |
| N8 | 0.2668 (3) | 0.2860 (3) | 0.6574 (2) | 0.0478 (9) | |
| C19 | 0.2514 (3) | 0.3738 (3) | 0.3533 (3) | 0.0406 (10) | |
| C20 | 0.0454 (3) | 0.3233 (3) | 0.1017 (3) | 0.0375 (9) | |
| C21 | 0.0725 (3) | 0.3694 (3) | 0.0067 (2) | 0.0365 (9) | |
| C22 | −0.0200 (4) | 0.3560 (3) | −0.0847 (3) | 0.0468 (11) | |
| H22 | −0.1059 | 0.3176 | −0.0899 | 0.056* | |
| C23 | 0.0162 (4) | 0.4007 (4) | −0.1695 (3) | 0.0605 (13) | |
| H23 | −0.0451 | 0.3914 | −0.2325 | 0.073* | |
| C24 | 0.1421 (4) | 0.4581 (4) | −0.1598 (3) | 0.0611 (13) | |
| H24 | 0.1685 | 0.4873 | −0.2161 | 0.073* | |
| C25 | 0.2298 (4) | 0.4721 (4) | −0.0645 (3) | 0.0581 (12) | |
| H25 | 0.3156 | 0.5130 | −0.0571 | 0.070* | |
| C26 | 0.2530 (3) | 0.3413 (3) | 0.4580 (2) | 0.0360 (9) | |
| C27 | 0.3693 (3) | 0.3604 (3) | 0.5289 (3) | 0.0395 (9) | |
| H27 | 0.4454 | 0.3924 | 0.5111 | 0.047* | |
| C28 | 0.3718 (4) | 0.3316 (3) | 0.6264 (3) | 0.0451 (10) | |
| H28 | 0.4513 | 0.3446 | 0.6736 | 0.054* | |
| C29 | 0.1532 (4) | 0.2681 (3) | 0.5884 (3) | 0.0477 (11) | |
| H29 | 0.0786 | 0.2362 | 0.6085 | 0.057* | |
| C30 | 0.1422 (3) | 0.2949 (3) | 0.4894 (3) | 0.0433 (10) | |
| H30 | 0.0617 | 0.2822 | 0.4438 | 0.052* | |
| C31 | −0.0845 (3) | 0.2501 (3) | 0.1009 (3) | 0.0396 (9) | |
| C32 | −0.1420 (4) | 0.2719 (3) | 0.1729 (3) | 0.0484 (11) | |
| H32 | −0.0964 | 0.3307 | 0.2233 | 0.058* | |
| C33 | −0.2659 (4) | 0.2085 (4) | 0.1718 (4) | 0.0658 (13) | |
| H33 | −0.3040 | 0.2247 | 0.2202 | 0.079* | |
| C34 | −0.3308 (4) | 0.1214 (4) | 0.0979 (4) | 0.0699 (14) | |
| H34 | −0.4140 | 0.0778 | 0.0962 | 0.084* | |
| C35 | −0.2754 (4) | 0.0976 (4) | 0.0266 (4) | 0.0708 (14) | |
| H35 | −0.3213 | 0.0381 | −0.0231 | 0.085* | |
| C36 | −0.1524 (4) | 0.1606 (3) | 0.0274 (3) | 0.0572 (12) | |
| H36 | −0.1150 | 0.1434 | −0.0210 | 0.069* | |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| Zn1 | 0.0348 (3) | 0.0483 (3) | 0.0352 (2) | 0.0049 (2) | 0.00822 (19) | 0.0085 (2) |
| Cl1 | 0.0643 (7) | 0.0521 (7) | 0.0679 (7) | 0.0167 (6) | 0.0003 (6) | 0.0003 (6) |
| Cl2 | 0.0417 (6) | 0.0625 (7) | 0.0589 (6) | 0.0144 (5) | 0.0150 (5) | 0.0116 (5) |
| O1 | 0.0372 (16) | 0.108 (3) | 0.0367 (15) | −0.0019 (17) | 0.0071 (12) | 0.0231 (16) |
| N1 | 0.0378 (18) | 0.055 (2) | 0.0263 (15) | 0.0062 (16) | 0.0066 (13) | 0.0109 (14) |
| N2 | 0.0388 (18) | 0.0483 (19) | 0.0290 (15) | 0.0085 (15) | 0.0098 (14) | 0.0108 (14) |
| N3 | 0.0416 (19) | 0.0428 (19) | 0.0333 (16) | 0.0112 (15) | 0.0146 (14) | 0.0098 (14) |
| N4 | 0.055 (2) | 0.055 (2) | 0.0299 (17) | 0.0147 (19) | 0.0083 (16) | 0.0119 (16) |
| C1 | 0.043 (2) | 0.048 (2) | 0.0304 (19) | 0.012 (2) | 0.0078 (18) | 0.0131 (17) |
| C2 | 0.039 (2) | 0.036 (2) | 0.0320 (19) | 0.0091 (18) | 0.0088 (17) | 0.0089 (16) |
| C3 | 0.035 (2) | 0.036 (2) | 0.0319 (19) | 0.0088 (18) | 0.0090 (16) | 0.0079 (16) |
| C4 | 0.041 (2) | 0.054 (3) | 0.036 (2) | 0.005 (2) | 0.0056 (18) | 0.0066 (19) |
| C5 | 0.058 (3) | 0.067 (3) | 0.032 (2) | 0.018 (2) | 0.0091 (19) | 0.017 (2) |
| C6 | 0.064 (3) | 0.065 (3) | 0.036 (2) | 0.020 (2) | 0.019 (2) | 0.014 (2) |
| C7 | 0.045 (2) | 0.052 (3) | 0.043 (2) | 0.008 (2) | 0.0153 (19) | 0.016 (2) |
| C8 | 0.037 (2) | 0.041 (2) | 0.0318 (19) | 0.0103 (18) | 0.0076 (16) | 0.0081 (17) |
| C9 | 0.041 (2) | 0.064 (3) | 0.037 (2) | 0.008 (2) | 0.0048 (18) | 0.015 (2) |
| C10 | 0.052 (3) | 0.063 (3) | 0.033 (2) | 0.015 (2) | 0.0000 (19) | 0.010 (2) |
| C11 | 0.048 (2) | 0.057 (3) | 0.040 (2) | 0.005 (2) | 0.0127 (19) | 0.013 (2) |
| C12 | 0.042 (2) | 0.053 (3) | 0.0266 (18) | 0.010 (2) | 0.0039 (16) | 0.0089 (18) |
| C13 | 0.032 (2) | 0.044 (2) | 0.0294 (18) | 0.0130 (18) | 0.0059 (16) | 0.0037 (17) |
| C14 | 0.041 (2) | 0.052 (3) | 0.040 (2) | 0.014 (2) | 0.0113 (18) | 0.0108 (19) |
| C15 | 0.053 (3) | 0.054 (3) | 0.054 (2) | 0.003 (2) | 0.021 (2) | 0.007 (2) |
| C16 | 0.039 (3) | 0.091 (4) | 0.061 (3) | −0.011 (3) | 0.011 (2) | 0.009 (3) |
| C17 | 0.031 (2) | 0.127 (5) | 0.071 (3) | 0.027 (3) | 0.012 (2) | 0.028 (3) |
| C18 | 0.051 (3) | 0.070 (3) | 0.052 (2) | 0.030 (2) | 0.019 (2) | 0.027 (2) |
| Zn2 | 0.0313 (2) | 0.0511 (3) | 0.0382 (3) | 0.0049 (2) | 0.00794 (19) | 0.0067 (2) |
| Cl3 | 0.0450 (6) | 0.0684 (7) | 0.0499 (6) | 0.0215 (5) | 0.0158 (5) | 0.0086 (5) |
| Cl4 | 0.0511 (7) | 0.0624 (7) | 0.0814 (8) | 0.0248 (6) | −0.0065 (6) | −0.0050 (6) |
| O2 | 0.0337 (15) | 0.0702 (19) | 0.0363 (14) | −0.0019 (14) | 0.0052 (12) | 0.0095 (13) |
| N5 | 0.0336 (18) | 0.056 (2) | 0.0309 (16) | 0.0033 (16) | 0.0063 (14) | 0.0119 (16) |
| N6 | 0.0359 (17) | 0.053 (2) | 0.0280 (15) | 0.0086 (16) | 0.0051 (13) | 0.0090 (14) |
| N7 | 0.0383 (18) | 0.053 (2) | 0.0368 (17) | 0.0035 (16) | 0.0111 (14) | 0.0088 (15) |
| N8 | 0.049 (2) | 0.054 (2) | 0.0324 (16) | 0.0127 (17) | 0.0038 (16) | 0.0106 (15) |
| C19 | 0.031 (2) | 0.056 (3) | 0.0318 (19) | 0.013 (2) | 0.0073 (16) | 0.0049 (18) |
| C20 | 0.031 (2) | 0.043 (2) | 0.0341 (19) | 0.0083 (18) | 0.0078 (16) | 0.0036 (17) |
| C21 | 0.037 (2) | 0.037 (2) | 0.0344 (19) | 0.0115 (18) | 0.0089 (17) | 0.0053 (17) |
| C22 | 0.041 (2) | 0.057 (3) | 0.036 (2) | 0.014 (2) | 0.0030 (18) | 0.0120 (19) |
| C23 | 0.064 (3) | 0.070 (3) | 0.038 (2) | 0.020 (3) | 0.003 (2) | 0.010 (2) |
| C24 | 0.077 (3) | 0.073 (3) | 0.034 (2) | 0.024 (3) | 0.021 (2) | 0.022 (2) |
| C25 | 0.052 (3) | 0.072 (3) | 0.045 (2) | 0.012 (2) | 0.020 (2) | 0.013 (2) |
| C26 | 0.034 (2) | 0.042 (2) | 0.0296 (18) | 0.0112 (17) | 0.0073 (16) | 0.0049 (16) |
| C27 | 0.031 (2) | 0.048 (2) | 0.0334 (19) | 0.0101 (18) | 0.0045 (16) | 0.0069 (17) |
| C28 | 0.041 (2) | 0.054 (3) | 0.031 (2) | 0.015 (2) | −0.0027 (18) | −0.0009 (18) |
| C29 | 0.044 (2) | 0.061 (3) | 0.035 (2) | 0.012 (2) | 0.0147 (18) | 0.0110 (19) |
| C30 | 0.030 (2) | 0.057 (3) | 0.036 (2) | 0.0110 (19) | 0.0046 (17) | 0.0082 (19) |
| C31 | 0.030 (2) | 0.045 (2) | 0.037 (2) | 0.0095 (18) | 0.0037 (17) | 0.0095 (18) |
| C32 | 0.042 (2) | 0.055 (3) | 0.042 (2) | 0.012 (2) | 0.0095 (19) | 0.0108 (19) |
| C33 | 0.042 (3) | 0.088 (4) | 0.069 (3) | 0.019 (3) | 0.022 (2) | 0.017 (3) |
| C34 | 0.035 (2) | 0.066 (3) | 0.094 (4) | 0.002 (2) | 0.014 (3) | 0.014 (3) |
| C35 | 0.048 (3) | 0.052 (3) | 0.095 (4) | 0.005 (2) | 0.007 (3) | −0.006 (3) |
| C36 | 0.041 (2) | 0.050 (3) | 0.068 (3) | 0.010 (2) | 0.004 (2) | −0.009 (2) |
Geometric parameters (Å, º) top
| Zn1—N2 | 2.078 (3) | Zn2—N7 | 2.131 (3) |
| Zn1—O1 | 2.127 (3) | Zn2—N6 | 2.136 (3) |
| Zn1—N3 | 2.200 (3) | Zn2—Cl3 | 2.2176 (13) |
| Zn1—Cl1 | 2.2400 (13) | Zn2—Cl4 | 2.2343 (13) |
| Zn1—Cl2 | 2.2793 (13) | Zn2—O2 | 2.248 (2) |
| O1—C1 | 1.252 (4) | O2—C19 | 1.217 (4) |
| N1—C1 | 1.330 (4) | N5—N6 | 1.367 (4) |
| N1—N2 | 1.377 (4) | N5—C19 | 1.369 (4) |
| N2—C2 | 1.304 (4) | N5—H5N | 0.849 (18) |
| N3—C7 | 1.336 (4) | N6—C20 | 1.289 (4) |
| N3—C3 | 1.348 (4) | N7—C25 | 1.329 (5) |
| N4—C10 | 1.318 (5) | N7—C21 | 1.348 (4) |
| N4—C11 | 1.341 (5) | N8—C28 | 1.332 (5) |
| N4—H4N | 0.98 (4) | N8—C29 | 1.340 (5) |
| C1—C8 | 1.503 (5) | C19—C26 | 1.479 (5) |
| C2—C13 | 1.474 (5) | C20—C31 | 1.479 (5) |
| C2—C3 | 1.490 (5) | C20—C21 | 1.487 (5) |
| C3—C4 | 1.381 (4) | C21—C22 | 1.370 (5) |
| C4—C5 | 1.382 (5) | C22—C23 | 1.389 (5) |
| C4—H4 | 0.9300 | C22—H22 | 0.9300 |
| C5—C6 | 1.360 (5) | C23—C24 | 1.360 (6) |
| C5—H5 | 0.9300 | C23—H23 | 0.9300 |
| C6—C7 | 1.379 (5) | C24—C25 | 1.381 (5) |
| C6—H6 | 0.9300 | C24—H24 | 0.9300 |
| C7—H7 | 0.9300 | C25—H25 | 0.9300 |
| C8—C12 | 1.378 (5) | C26—C27 | 1.372 (5) |
| C8—C9 | 1.380 (5) | C26—C30 | 1.392 (5) |
| C9—C10 | 1.366 (5) | C27—C28 | 1.370 (5) |
| C9—H9 | 0.9300 | C27—H27 | 0.9300 |
| C10—H10 | 0.9300 | C28—H28 | 0.9300 |
| C11—C12 | 1.370 (5) | C29—C30 | 1.372 (5) |
| C11—H11 | 0.9300 | C29—H29 | 0.9300 |
| C12—H12 | 0.9300 | C30—H30 | 0.9300 |
| C13—C18 | 1.377 (5) | C31—C32 | 1.379 (5) |
| C13—C14 | 1.387 (5) | C31—C36 | 1.389 (5) |
| C14—C15 | 1.373 (5) | C32—C33 | 1.385 (5) |
| C14—H14 | 0.9300 | C32—H32 | 0.9300 |
| C15—C16 | 1.379 (7) | C33—C34 | 1.369 (6) |
| C15—H15 | 0.9300 | C33—H33 | 0.9300 |
| C16—C17 | 1.352 (7) | C34—C35 | 1.364 (6) |
| C16—H16 | 0.9300 | C34—H34 | 0.9300 |
| C17—C18 | 1.374 (6) | C35—C36 | 1.377 (6) |
| C17—H17 | 0.9300 | C35—H35 | 0.9300 |
| C18—H18 | 0.9300 | C36—H36 | 0.9300 |
| | | |
| N2—Zn1—O1 | 74.86 (10) | N7—Zn2—N6 | 73.37 (11) |
| N2—Zn1—N3 | 74.29 (11) | N7—Zn2—Cl3 | 103.43 (10) |
| O1—Zn1—N3 | 148.50 (11) | N6—Zn2—Cl3 | 133.30 (10) |
| N2—Zn1—Cl1 | 117.50 (10) | N7—Zn2—Cl4 | 100.89 (10) |
| O1—Zn1—Cl1 | 102.71 (10) | N6—Zn2—Cl4 | 114.89 (10) |
| N3—Zn1—Cl1 | 97.02 (9) | Cl3—Zn2—Cl4 | 111.46 (5) |
| N2—Zn1—Cl2 | 128.30 (10) | N7—Zn2—O2 | 144.79 (11) |
| O1—Zn1—Cl2 | 93.30 (9) | N6—Zn2—O2 | 71.72 (9) |
| N3—Zn1—Cl2 | 100.75 (9) | Cl3—Zn2—O2 | 97.10 (8) |
| Cl1—Zn1—Cl2 | 114.20 (5) | Cl4—Zn2—O2 | 97.70 (8) |
| C1—O1—Zn1 | 110.7 (2) | C19—O2—Zn2 | 115.5 (2) |
| C1—N1—N2 | 108.2 (3) | N6—N5—C19 | 114.4 (3) |
| C2—N2—N1 | 120.4 (3) | N6—N5—H5N | 122 (3) |
| C2—N2—Zn1 | 121.7 (2) | C19—N5—H5N | 122 (3) |
| N1—N2—Zn1 | 117.9 (2) | C20—N6—N5 | 121.9 (3) |
| C7—N3—C3 | 118.7 (3) | C20—N6—Zn2 | 120.7 (2) |
| C7—N3—Zn1 | 126.2 (2) | N5—N6—Zn2 | 117.3 (2) |
| C3—N3—Zn1 | 114.6 (2) | C25—N7—C21 | 118.9 (3) |
| C10—N4—C11 | 121.3 (3) | C25—N7—Zn2 | 123.1 (3) |
| C10—N4—H4N | 118 (2) | C21—N7—Zn2 | 116.5 (2) |
| C11—N4—H4N | 120 (2) | C28—N8—C29 | 117.3 (3) |
| O1—C1—N1 | 128.2 (3) | O2—C19—N5 | 121.1 (3) |
| O1—C1—C8 | 117.2 (3) | O2—C19—C26 | 122.0 (3) |
| N1—C1—C8 | 114.5 (3) | N5—C19—C26 | 116.9 (3) |
| N2—C2—C13 | 124.3 (3) | N6—C20—C31 | 126.2 (3) |
| N2—C2—C3 | 113.6 (3) | N6—C20—C21 | 112.5 (3) |
| C13—C2—C3 | 122.0 (3) | C31—C20—C21 | 121.3 (3) |
| N3—C3—C4 | 121.0 (3) | N7—C21—C22 | 121.3 (3) |
| N3—C3—C2 | 115.0 (3) | N7—C21—C20 | 114.8 (3) |
| C4—C3—C2 | 124.0 (3) | C22—C21—C20 | 123.8 (3) |
| C3—C4—C5 | 119.4 (4) | C21—C22—C23 | 119.1 (4) |
| C3—C4—H4 | 120.3 | C21—C22—H22 | 120.4 |
| C5—C4—H4 | 120.3 | C23—C22—H22 | 120.4 |
| C6—C5—C4 | 119.6 (3) | C24—C23—C22 | 119.5 (4) |
| C6—C5—H5 | 120.2 | C24—C23—H23 | 120.3 |
| C4—C5—H5 | 120.2 | C22—C23—H23 | 120.3 |
| C5—C6—C7 | 118.5 (4) | C23—C24—C25 | 118.5 (4) |
| C5—C6—H6 | 120.8 | C23—C24—H24 | 120.7 |
| C7—C6—H6 | 120.8 | C25—C24—H24 | 120.7 |
| N3—C7—C6 | 122.9 (4) | N7—C25—C24 | 122.6 (4) |
| N3—C7—H7 | 118.6 | N7—C25—H25 | 118.7 |
| C6—C7—H7 | 118.6 | C24—C25—H25 | 118.7 |
| C12—C8—C9 | 118.6 (3) | C27—C26—C30 | 118.1 (3) |
| C12—C8—C1 | 122.0 (3) | C27—C26—C19 | 118.6 (3) |
| C9—C8—C1 | 119.3 (3) | C30—C26—C19 | 123.3 (3) |
| C10—C9—C8 | 119.4 (4) | C28—C27—C26 | 119.0 (4) |
| C10—C9—H9 | 120.3 | C28—C27—H27 | 120.5 |
| C8—C9—H9 | 120.3 | C26—C27—H27 | 120.5 |
| N4—C10—C9 | 121.0 (4) | N8—C28—C27 | 123.7 (3) |
| N4—C10—H10 | 119.5 | N8—C28—H28 | 118.2 |
| C9—C10—H10 | 119.5 | C27—C28—H28 | 118.2 |
| N4—C11—C12 | 120.0 (4) | N8—C29—C30 | 122.7 (4) |
| N4—C11—H11 | 120.0 | N8—C29—H29 | 118.6 |
| C12—C11—H11 | 120.0 | C30—C29—H29 | 118.6 |
| C11—C12—C8 | 119.7 (3) | C29—C30—C26 | 119.1 (3) |
| C11—C12—H12 | 120.2 | C29—C30—H30 | 120.4 |
| C8—C12—H12 | 120.2 | C26—C30—H30 | 120.4 |
| C18—C13—C14 | 118.8 (4) | C32—C31—C36 | 118.7 (4) |
| C18—C13—C2 | 121.3 (4) | C32—C31—C20 | 119.8 (3) |
| C14—C13—C2 | 119.8 (3) | C36—C31—C20 | 121.5 (4) |
| C15—C14—C13 | 120.8 (4) | C31—C32—C33 | 121.7 (4) |
| C15—C14—H14 | 119.6 | C31—C32—H32 | 119.1 |
| C13—C14—H14 | 119.6 | C33—C32—H32 | 119.1 |
| C14—C15—C16 | 119.2 (4) | C34—C33—C32 | 118.3 (4) |
| C14—C15—H15 | 120.4 | C34—C33—H33 | 120.8 |
| C16—C15—H15 | 120.4 | C32—C33—H33 | 120.8 |
| C17—C16—C15 | 120.4 (4) | C35—C34—C33 | 121.0 (4) |
| C17—C16—H16 | 119.8 | C35—C34—H34 | 119.5 |
| C15—C16—H16 | 119.8 | C33—C34—H34 | 119.5 |
| C16—C17—C18 | 120.7 (4) | C34—C35—C36 | 120.8 (4) |
| C16—C17—H17 | 119.6 | C34—C35—H35 | 119.6 |
| C18—C17—H17 | 119.6 | C36—C35—H35 | 119.6 |
| C17—C18—C13 | 120.1 (4) | C35—C36—C31 | 119.5 (4) |
| C17—C18—H18 | 120.0 | C35—C36—H36 | 120.2 |
| C13—C18—H18 | 120.0 | C31—C36—H36 | 120.2 |
| | | |
| N2—Zn1—O1—C1 | 2.0 (3) | N7—Zn2—O2—C19 | −5.4 (4) |
| N3—Zn1—O1—C1 | 14.0 (5) | N6—Zn2—O2—C19 | 2.3 (3) |
| Cl1—Zn1—O1—C1 | −113.5 (3) | Cl3—Zn2—O2—C19 | −131.1 (3) |
| Cl2—Zn1—O1—C1 | 130.8 (3) | Cl4—Zn2—O2—C19 | 116.0 (3) |
| C1—N1—N2—C2 | −178.5 (3) | C19—N5—N6—C20 | −174.8 (4) |
| C1—N1—N2—Zn1 | 3.3 (4) | C19—N5—N6—Zn2 | 0.8 (4) |
| O1—Zn1—N2—C2 | 178.9 (3) | N7—Zn2—N6—C20 | −10.5 (3) |
| N3—Zn1—N2—C2 | 5.3 (3) | Cl3—Zn2—N6—C20 | −103.5 (3) |
| Cl1—Zn1—N2—C2 | −84.5 (3) | Cl4—Zn2—N6—C20 | 84.0 (3) |
| Cl2—Zn1—N2—C2 | 96.8 (3) | O2—Zn2—N6—C20 | 174.1 (3) |
| O1—Zn1—N2—N1 | −2.9 (3) | N7—Zn2—N6—N5 | 173.8 (3) |
| N3—Zn1—N2—N1 | −176.5 (3) | Cl3—Zn2—N6—N5 | 80.9 (3) |
| Cl1—Zn1—N2—N1 | 93.7 (3) | Cl4—Zn2—N6—N5 | −91.7 (3) |
| Cl2—Zn1—N2—N1 | −85.0 (3) | O2—Zn2—N6—N5 | −1.5 (3) |
| N2—Zn1—N3—C7 | −179.7 (4) | N6—Zn2—N7—C25 | 179.1 (4) |
| O1—Zn1—N3—C7 | 168.2 (3) | Cl3—Zn2—N7—C25 | −49.3 (4) |
| Cl1—Zn1—N3—C7 | −63.1 (3) | Cl4—Zn2—N7—C25 | 66.1 (4) |
| Cl2—Zn1—N3—C7 | 53.3 (3) | O2—Zn2—N7—C25 | −173.3 (3) |
| N2—Zn1—N3—C3 | −8.2 (3) | N6—Zn2—N7—C21 | 13.3 (3) |
| O1—Zn1—N3—C3 | −20.2 (4) | Cl3—Zn2—N7—C21 | 145.0 (3) |
| Cl1—Zn1—N3—C3 | 108.5 (3) | Cl4—Zn2—N7—C21 | −99.6 (3) |
| Cl2—Zn1—N3—C3 | −135.2 (3) | O2—Zn2—N7—C21 | 21.0 (4) |
| Zn1—O1—C1—N1 | −0.9 (6) | Zn2—O2—C19—N5 | −2.8 (5) |
| Zn1—O1—C1—C8 | −179.5 (3) | Zn2—O2—C19—C26 | 179.6 (3) |
| N2—N1—C1—O1 | −1.5 (6) | N6—N5—C19—O2 | 1.4 (6) |
| N2—N1—C1—C8 | 177.2 (3) | N6—N5—C19—C26 | 179.1 (3) |
| N1—N2—C2—C13 | 3.3 (6) | N5—N6—C20—C31 | 3.7 (6) |
| Zn1—N2—C2—C13 | −178.5 (3) | Zn2—N6—C20—C31 | −171.7 (3) |
| N1—N2—C2—C3 | −180.0 (3) | N5—N6—C20—C21 | −178.5 (3) |
| Zn1—N2—C2—C3 | −1.8 (4) | Zn2—N6—C20—C21 | 6.0 (4) |
| C7—N3—C3—C4 | 0.1 (6) | C25—N7—C21—C22 | −3.2 (6) |
| Zn1—N3—C3—C4 | −172.2 (3) | Zn2—N7—C21—C22 | 163.2 (3) |
| C7—N3—C3—C2 | −177.8 (3) | C25—N7—C21—C20 | 178.7 (4) |
| Zn1—N3—C3—C2 | 10.0 (4) | Zn2—N7—C21—C20 | −14.9 (4) |
| N2—C2—C3—N3 | −5.8 (5) | N6—C20—C21—N7 | 5.9 (5) |
| C13—C2—C3—N3 | 171.1 (3) | C31—C20—C21—N7 | −176.2 (3) |
| N2—C2—C3—C4 | 176.5 (4) | N6—C20—C21—C22 | −172.1 (4) |
| C13—C2—C3—C4 | −6.7 (6) | C31—C20—C21—C22 | 5.7 (6) |
| N3—C3—C4—C5 | 1.5 (6) | N7—C21—C22—C23 | 3.4 (6) |
| C2—C3—C4—C5 | 179.2 (4) | C20—C21—C22—C23 | −178.6 (4) |
| C3—C4—C5—C6 | −2.3 (7) | C21—C22—C23—C24 | −1.1 (7) |
| C4—C5—C6—C7 | 1.5 (7) | C22—C23—C24—C25 | −1.4 (7) |
| C3—N3—C7—C6 | −0.9 (6) | C21—N7—C25—C24 | 0.6 (7) |
| Zn1—N3—C7—C6 | 170.3 (3) | Zn2—N7—C25—C24 | −164.8 (3) |
| C5—C6—C7—N3 | 0.1 (7) | C23—C24—C25—N7 | 1.7 (7) |
| O1—C1—C8—C12 | −177.7 (4) | O2—C19—C26—C27 | −24.1 (6) |
| N1—C1—C8—C12 | 3.5 (6) | N5—C19—C26—C27 | 158.2 (4) |
| O1—C1—C8—C9 | 2.7 (6) | O2—C19—C26—C30 | 154.0 (4) |
| N1—C1—C8—C9 | −176.1 (4) | N5—C19—C26—C30 | −23.6 (6) |
| C12—C8—C9—C10 | −1.1 (6) | C30—C26—C27—C28 | 1.1 (6) |
| C1—C8—C9—C10 | 178.6 (4) | C19—C26—C27—C28 | 179.3 (3) |
| C11—N4—C10—C9 | 1.0 (6) | C29—N8—C28—C27 | −0.1 (6) |
| C8—C9—C10—N4 | 0.3 (7) | C26—C27—C28—N8 | −0.4 (6) |
| C10—N4—C11—C12 | −1.5 (6) | C28—N8—C29—C30 | −0.1 (6) |
| N4—C11—C12—C8 | 0.7 (6) | N8—C29—C30—C26 | 0.9 (6) |
| C9—C8—C12—C11 | 0.5 (6) | C27—C26—C30—C29 | −1.3 (6) |
| C1—C8—C12—C11 | −179.1 (4) | C19—C26—C30—C29 | −179.5 (4) |
| N2—C2—C13—C18 | −130.1 (4) | N6—C20—C31—C32 | 50.0 (6) |
| C3—C2—C13—C18 | 53.5 (5) | C21—C20—C31—C32 | −127.6 (4) |
| N2—C2—C13—C14 | 52.6 (5) | N6—C20—C31—C36 | −131.8 (4) |
| C3—C2—C13—C14 | −123.9 (4) | C21—C20—C31—C36 | 50.6 (5) |
| C18—C13—C14—C15 | −0.1 (6) | C36—C31—C32—C33 | −1.5 (6) |
| C2—C13—C14—C15 | 177.3 (3) | C20—C31—C32—C33 | 176.8 (4) |
| C13—C14—C15—C16 | 1.0 (6) | C31—C32—C33—C34 | 0.9 (7) |
| C14—C15—C16—C17 | −1.2 (7) | C32—C33—C34—C35 | −0.2 (7) |
| C15—C16—C17—C18 | 0.5 (8) | C33—C34—C35—C36 | 0.1 (8) |
| C16—C17—C18—C13 | 0.4 (7) | C34—C35—C36—C31 | −0.7 (7) |
| C14—C13—C18—C17 | −0.6 (6) | C32—C31—C36—C35 | 1.3 (6) |
| C2—C13—C18—C17 | −177.9 (4) | C20—C31—C36—C35 | −177.0 (4) |
Hydrogen-bond geometry (Å, º) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N5—H5N···Cl2 | 0.85 (2) | 2.46 (2) | 3.250 (3) | 156 (4) |
| N4—H4N···N8i | 0.98 (4) | 1.78 (4) | 2.749 (4) | 170 (4) |
| Symmetry code: (i) x, y, z−1. |
Hydrogen-bond geometry (Å, º) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N5—H5N···Cl2 | 0.849 (18) | 2.46 (2) | 3.250 (3) | 156 (4) |
| N4—H4N···N8i | 0.98 (4) | 1.78 (4) | 2.749 (4) | 170 (4) |
| Symmetry code: (i) x, y, z−1. |
Addison, A. W., Rao, T. N., Reedijk, J., Rijn, J. & Verschoor, G. C. (1984). J. Chem. Soc. Dalton Trans. pp. 1349–1356.
Despaigne, A. A. R., Da Silva, J. G., do Carmo, A. C. M., Piro, O. E., Castellano, E. E. & Beraldo, H. (2009). Inorg. Chim. Acta, 362, 2117–2122.
Rigaku (2009). CrystalClear-SM Expert. Rigaku Corporation, Tokyo, Japan.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Spek, A. L. (2009). Acta Cryst. D65, 148–155.
Welter, R. (2006). Acta Cryst. A62, s252.
The title compound crystallizes with two different molecules in the asymmetric unit (Fig. 1), which differ from two tautomeric forms of the Schiff base. The ligand molecules coordinate respectively to one of the zinc(II) atom in a tridentate manner in his hydrazide form and to the other zinc(II) center in the tautomeric form where the nitrogen atom of the uncoordinated pyridine ring is protonated by the proton atom from the nitrogen of the hydrazide moiety. In both cases the coordination manner creates two five-membered chelate metalla rings. The two molecules in the asymmetric unit interact via hydrogen bond N—H···N between the two uncoordinated pyridine rings. The bond between Zn center and the pyridine nitrogen are slightly (2.200 (3) and 2.131 (3) Å) different to the two other Zn–N bonds (2.078 (3) and 2.136 (3)). These distances are comparable to those found in the complex [Zn(H2BzpClPh)Cl2] (H2BzpClPh is 2-benzoylpyridine-para-chloro-phenylhydrazone) (Despaigne et al., 2009). In the complex, significant variations were observed for the C—O and Zn—O bond distances in the two hydrazone moieties. The C1—O1 bond distance of 1.252 (4) Å is in accordance with a higher single bond character while the C19—O2 bond distance of 1.217 (4) Å is in accordance with a double bond character. The Zn2—O2 bond distance is 2.248 (2) Å while the Zn1—O1 length is 2.127 Å. The decreasing of the length is in accordance with the presence of a negative charge at the oxygen atom O1, which increases the strength of the Zn1—O1 bond. The largest angles around the Zn(II) centers (<β>: N3—Zn1—O1 = 148.50 (11) ° and <β> N7—Zn2—O2 = 114.79 (11) °) are slightly larger than the second-largest ones (<α>: N2—Zn1—Cl2 = 128.30 (10)and <α>: N6—Zn2—Cl3 = 133.10 (10) °). Since the distortion (τ = (β-α)/60) value of the coordination polyhedron, <τ> = 0.337 for Zn1 and <τ> = 0.191 for Zn2 which can be compared with the ideal value for 1 for trigonal-bipyramidal and 0 for square-pyramidal (Addison et al., 1984), the environment of the metal center can be determinate. Each zinc center has a square pyramidal geometry with appreciable distortions as shown by the Addison <τ> parameter. The basal plane for earch ZnII center is respectively constructed by the coordination of two nitrogen atoms and one oxygen atom from the organic ligand molecule and one chloride atom acting as monodentate anion to zinc. The fifth coordination site is completed by a monodentate chloride anion.